According to eminent Elisa kits suppliers in India, there are various facts about ELISA that you all should know. So, if you are eager to gain an idea, read more. 

ELISA or enzyme-linked immunosorbent assay technology refers to a robust technology. It helps in the easy detection of targets that lie inside a sample. CUSABIO Elisa Kit distributors have been contributing to the development as well as refinement of ELISA for more than a decade. 

The Rich Biological History Of ELISA Kits 

1. In 1941, Albert H. Coons along with his team were the first to identify antibodies in tissue sections. Furthermore, the identification was only possible with a fluorescent dye. This was the first time when the world got to know about antibody signals. Ever since then, the technology becomes popular as immunofluorescence. 

2. Further, in 1960, Rosalyn Sussman wrote a scientific paper with Solomon Berson. The paper had a description of radioimmunoassay which is an assay technique using radiolabel molecules. There was a stepwise formation of immune complexes. But, due to radioactivity’s correspondence with health concerns, researchers were looking for a much safer technique. 

3. Next, we know, in 1971, two Sweden researchers namely Peter Perlman and Eva Engvall did something remarkable. They made an independent discovery at Stockholm University which concerned a technique. Later on, we call this unique technique an “ELISA test.”

4. Finally, ELISA tests were great for determining the presence of viruses and hormones in samples. The earliest use of the competitive ELISA method was in 1976. It was a conjugated substrate competing with human choriogonadotropin hormone (HCG) to detect the concentration of HCG in a sample. 

Different Types Of ELISA Kits 

Direct ELISA 

Direct ELISAs are all about coating the antigen to the ELISA plates. The initial binding step includes adding antigen to the plates which remain incubated for one hour. The ideal temperature is 37 degrees C. Direct ELISA helps in reducing secondary antibody cross-reactivity. 

Indirect ELISA 

Besides, the steps involved in indirect ELISA are more or less similar to the direct ones. There is only an additional washing step and after removing the buffer, the antibodies are added. In comparison to direct ELISA, indirect ELISA has a greater level of sensitivity. 

Sandwich ELISA 

Unlike the other two, sandwich ELISA starts with capturing antibodies coated on the wells of a plate. Researchers call it a “sandwich” because the antigens get sandwiched between the two antibody layers. Moreover, it has the highest level of sensitivity among all ELISA. 

Conclusion 

Now, you can get classic ELISA kits at extremely affordable prices. Simply, head over to Biochain. They are the leading manufacturer of Elisa Kit For Food Safety & Drug Residues. With them, you do not have to worry about the quality of your antibodies, antigens or ELISA kits.